Superior Sensing with GO Switch Technology
The D-Series is powered by TopWorx GO Switch sensing technology, which sets the benchmark for reliability in extreme conditions. Unlike standard proximity sensors, GO Switches are hermetically sealed, allowing them to outperform competitors in environments that are hot, cold, wet, dirty, or corrosive.
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Best-in-Class Durability: The switches are designed to survive abusive and explosive conditions without losing calibration.
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Precision Cam Design: The unique cam system allows for quick and accurate setting of switch positions. This precision reduces deadband and hysteresis to a minimum, ensuring that the control system receives the most accurate data regarding valve position.
Core Technical Advantages
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Global Standardization: With IECEx, ATEX, and UL certifications combined in a single model, along with regional approvals like NEPSI, KOSHA, InMetro, and EAC, the DXP simplifies procurement and maintenance for global operations.
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Variety of Networks and Sensors: The DXP supports a wide range of bus networks (such as Foundation Fieldbus, DeviceNet, AS-Interface, and Profibus) and multiple sensor options to fit any control architecture.
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Ease of Adjustment: The controller features color-coded Twist-Set cams. These allow for the easiest and fastest limit switch adjustment in the industry, significantly reducing commissioning time.
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High-Visibility Display: An impact-resistant, highly visible position indicator provides clear local status of the valve position, even from a distance or in low-light plant conditions.
Technical Core
| Feature | Technical Specification / Detail |
| Enclosure Material | Aluminum, Composite, or Stainless Steel |
| Certifications | UL/CSA, ATEX, IECEx, NEPSI, KOSHA, InMetro, PESO, EAC |
| Bus Networking | Foundation Fieldbus, DeviceNet, AS-Interface, Profibus, HART |
| Sensing Options | GO Switch, Proximity, Mechanical Switches, 4-20mA Transmitter |
| Temperature Range | -50 to 105°C (-58 to 221°F) |
| Environmental Rating | NEMA 4, 4X, 7, 9 / IP66/67 |
Applications and Industry Sectors
The DXP is built for demanding applications where failure is not an option.
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Oil and Gas: Reliable monitoring of emergency shutdown (ESD) valves and flowline automation.
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Chemical Processing: Surviving highly corrosive atmospheres while providing precise feedback for batch processing.
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Power Generation: Managing auxiliary steam and water valves in high-vibration and high-temperature areas.
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Mining and Metals: Operating in dirty and abusive conditions where standard sensors fail.
Xi’an Yunrui Trading Co., Ltd. Technical Support
Xi’an Yunrui Trading Co., Ltd. is a specialized supplier of TopWorx and Emerson automation solutions. We provide original DX-Series controllers to help industrial clients standardize their operations and improve plant reliability. Our technical team offers expert guidance on selecting the correct bus network and sensor configuration for your specific site requirements. Through our optimized supply chain, we deliver these high-performance controllers at highly competitive prices.
If you are looking to replace standard limit switch boxes that are failing due to moisture or corrosion, please contact our technical team to discuss how GO Switch technology can solve your uptime challenges.
